Tensioned hammers and "the staple"

[David Love]

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Yes, that represents one side of the discussion.  But the other side =
seems to disagree with that analysis as to its function.

David Love
  ----- Original Message -----=20
  From: Tom Servinsky=20
  To: pianotech@ptg.org=20
  Sent: September 26, 2001 6:30 PM
  Subject: Re: Tensioned hammers and "the staple"


  David,
  According to Wally Brooks, Brooks LTD, the staple acts as a "girdle", =
helping to keep pressure pushing upwards.  His source of information =
comes straight from Abel.
  Tom Servinsky,RPT
    ----- Original Message -----=20
    From: David Love=20
    To: Pianotech=20
    Sent: Wednesday, September 26, 2001 7:04 PM
    Subject: Tensioned hammers and "the staple"


    While in Reno I had a conversation with two established =
representatives of well known hammer manufacturer's regarding the =
function of the staple.  both agreed that it was of little use for =
keeping the felt attached to the core once the glue dried.  Beyond that, =
however,  I was given two bits if information in total opposition.  One =
argued that the staple was necessary for maintaining tension in the =
hammer and that pulling the stable would destroy the tone,  the other =
argued that the staple serves no purpose, really, and, in fact, pulling =
the staple would release some tension in the lower part of the hammer =
accomplishing to some degree what prevoicing in the low shoulder is =
designed to do.  He went on to say that many concert voicers =
automatically pulled the staple when setting up a new set of hammers for =
precisely that reason.   Can anyone comment on this apparent =
disagreement. =20

    David Love



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